You never expected your house maid would find your key and then blackmail you to stay her little toy when she caught you wearing your cage and took some photos. If you fired her, she would just release the embarrassing photos.
She dressed you up in her old uniform and took your photo. You looked different enough, but people who knew you would know it was you. She then used these photos as leverage to get you to do more and more humiliating things until finally she locked you i
